Valve



(No Model.)

0. J. BALDWIN.

VALVE.

Patented Apr. 21, 1896,.

FFICE..

OZRO J. ISALDIVIN, 0F YOUNGSVILLE, PENNSYLVANIA.

VALVE.

SPECIFICATION forming part of Letters Patent No. 558,708, dated April 21, 1896. Application tiled July 3l, 1895. Serial No. 557,768. (No model.)

To au whom, t may concern,.-

Be it known that I, OZRO J. BALDWIN, a citizen of the United States, residing at Youngsville, in the county of Varren and State of Pennsylvania, have invented certain new and useful Improvements in Valves; and I do de clare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to valves, and more particularly to the turning-plu g type.

The object of the invention is to provide a valve with simple means for adjusting the plug to compensate for wear, and also to pro.- vide means for draining the water from the waterway of the plug when the valve is cut off, thereby preventing bursting or binding in freezing weather.

Vith these objects in view the invention consists of certain features of construction and combinations of parts which will be hereinafter set forth.

In the accompanying drawings, Figure 1 is a perspective view of my improved valve. Fig. 2 is a longitudinal vertical sectional view through the saine. Fig. 3 is a detailed perspective view of the valve, plug, cage, valve-stem, bushing, and the plugoperating wheel, showing the parts separated; and

' 4E is a modification.

In the drawings, l denotes the valve-casing, which may be of any well-known or iinproved construction, which is provided at its lower end with a drain-chamber 2, having a screw-thread opening 3 in its bottom, which opening is closed by screw-valve 4, formed at its upper end with a conical seat 5.

G denotes the valve-plug, having a hollow body and provided with the usual waterway '7. The lower end of this valve-plug is provided with an opening 8, the lower end of the wall of which is ilared to receive the tapering or conical seat 5. rlhe upper end of the plug is provided or formed with a cap-plate 9, which rests upon a washer 10, supported at the upper end of the valve-casino. This washer may be made of lead, asbestos, or any other suitable material, the wearing quality or life of which is designed to be less than that of the plug and the valve-casing, for the purpose presently to appear. Lugs 11, ar-

ranged in sets of two, project upward from the cap and are spaced apart, as also are the sets. Between these sets of lugs is a bearingsocket 12.

13 denotes a cage which comprises a ring 14, having interior screw-threads to engage the screw-threads 15 at the upper end of the valve-casing, and provided with upwardlyextending arms 1G, connected with the collar 17, having aninterior screw-thread 1S. Into this collar is screwed a bushing 19, having a polygonal head 20, by means of which it is operated.

2l denotes the valveestem, which projects upward through the bushing and is provided at its upper end with a squared portion 22, upon which is placed a hand-wheel 23, which is held thereon by screw 24: and washer 25. The lower end of the valve-ste1n is provided with a head 2G, composed of laterally-extend ing arms 27, which are adapted to rest between the lugs of each set. Projecting down from this head is a pin 2S, which engages the bearing-socket 12.

2f) denotes a washer which is arranged between the lower end of the bushing and collar 30, formed on the valve-stem above its head. This washer may be made of asbestos, lead, or any other suitable material.

In use, by turning the hand-wheel the plug may be opened or closed, and owing to the fact that the head has a rocking engagement with the lugs, by reason of the pin of the head being seated in the socket, any irregularities in casting either the plug or the casing will not cause the plug to bind. Vhen the valve is closed, it is oftentimes desirable to drain the water from the water-passage of the plug to prevent the water from freezing, which very often bursts the easing. I drain the water from the chamber at the lower end of the valve by removing the screw, so that when closed there will loe no water whatever either in the plug or the valvecasingthe valve becomes worn I compensate for such wearI by screwing the bushing down, which will cause the plug to be forced against its seat in the valve-casing. In this connection it will be noticed that the washer interposed between the cap of the plug and the upperend of the valve-casing will, owing to the material of which it is composed, wear IOO much faster than the plug or casing, so that it will not interfere with the adjustment of the plug to compensate for the wear.

As shown in Fig. et, I provide the inner sides of the lugs with dovetailed grooves, and have provided the head of the spindle with dovetailed ribs, which take into said grooves. This construction enables me to lift the turir plug from its casing in the act of removing the cage.

By inserting a pin 3l transversely through the spindle above the bushing I am enabled to lift the plug from its seat, should it bind, simply by moving the bushing upward against the pin.

I-Iaving thus described my invention, I desire lto claim by Letters Patent of the United Statesl. The combination with a valve -casing provided at its lower end with a drain-chamber, ,and having its upper end screwthreaded, of a washer supported upon its upper end, a plug located within said valve-casing and provided with a cap-plate seated upon said washer, lugs extending upward from said plate, a recess formed between said lugs, said plug formed with an aperture which leads from the waterway in said plug to the drainchamber, a cage secured to the valve-casing and provided with an interiorly-screwthread ed collar, a bushing having exterior screwthreads to engage with said collar, a valvestem journaled in said bushing and provided at its lower end with a head to engage the lugs, and above its lower end with a shoulder to be engaged by the bushing, whereby the plug may be adjusted to compensate for wear.

2. rlhe combination of the valve -casing having its upper end screw-threaded, a washer supported upon its upper end, a plug located within said valvecasing and provided with a cap-plate seated upon said washer, lugs extending upward from the plate, a recess formed between said lugs, a cage secured to the valve-casing provided with an interiorlyscrew-threaded collar, a bushing having eX- terior screw-threads to engage with said collar, a valve-stem journaled in said bushing and provided at its lower end with a head to engage the lugs, and above its lower end with a shoulder to be engaged by the bushing, whereby the plug may be adjusted to compensate for wear.

3. The combination lwith a valvecasing, and a plug fitted therein and provided with lugs at its upper end, said lugs having dovetail transverse grooves, of a cage secured to said casing and provided with an interiorly screw-threaded collar, a bushing having a screw-threaded engagement with said collar, and a valve-spindle having at its lower end a head provided with transverse dovetail ribs to it into said grooves.

In testimony whereof I affix my signature .in presence of two witnesses.

`OZRO J. BALDWIN. 1Witnesses:

SAML. A. DRURY, A. B. SUIT. 

